2.6.27-stable review patch. If anyone has any objections, please let us know. ------------------ From: Nicolas Pitre commit 72bc2b1ad62f4d2f0a51b35829093d41f55accce upstream. Same fix as commit c7cf72dcadb: when 'start' and 'end' are less than a cacheline apart and 'start' is unaligned we are done after cleaning and invalidating the first cacheline. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King Signed-off-by: Greg Kroah-Hartman --- arch/arm/mm/cache-feroceon-l2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/arm/mm/cache-feroceon-l2.c +++ b/arch/arm/mm/cache-feroceon-l2.c @@ -148,7 +148,7 @@ static void feroceon_l2_inv_range(unsign /* * Clean and invalidate partial last cache line. */ - if (end & (CACHE_LINE_SIZE - 1)) { + if (start < end && end & (CACHE_LINE_SIZE - 1)) { l2_clean_inv_pa(end & ~(CACHE_LINE_SIZE - 1)); end &= ~(CACHE_LINE_SIZE - 1); } @@ -156,7 +156,7 @@ static void feroceon_l2_inv_range(unsign /* * Invalidate all full cache lines between 'start' and 'end'. */ - while (start != end) { + while (start < end) { unsigned long range_end = calc_range_end(start, end); l2_inv_pa_range(start, range_end - CACHE_LINE_SIZE); start = range_end; -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/